33 entries under channel topic. ×

26
trench(noun, depression, ditch, groove)
19
ditch(noun, depression, pit, conduit)
18
furrow(noun, depression, ditch, scrape)
15
hollow(noun, area, depression, empty, ditch)
15
dip(noun, decline, low, depression)
13
gutter(noun, drain, ditch, pit)
13
groove(noun, drain, means, dip)
10
canal(noun, depression, course, drain, means)
9
moat(noun, depression, drain, ditch)
7
cup(noun, depression, dip, bottom)
7
crater(noun, depression, hollow, scrape)
6
dike(noun, depression, drain, ditch)
6
conduit(noun, line, course, drain, means)
5
gully(noun, depression, ditch, pit)
5
mine(noun, pit, trench, quarry)
4
duct(noun, line, depression, course, drain)
3
sewer(noun, course, drain, means, flow)
3
sluice(noun, drain, race, ditch, stream)
3
drain(noun, race, ditch, pit)
3
spout(noun, drain, flow, passage)
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APASmart Define. (2015). trough thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/trough/thesaurus/synonyms
ChicagoSmart Define. 2015. "trough thesaurus" https://smartdefine.org/trough/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, trough thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/trough/thesaurus/synonyms>.
MLASmart Define. "trough thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/trough/thesaurus/synonyms>